[COMMITTED 12/16] Make some integer specific ranges generic Value_Range's.

[Aldy Hernandez]

There are some irange uses that should be Value_Range, because they
can be either integers or pointers.  This will become a problem when
prange comes live.

gcc/ChangeLog:

        * tree-ssa-loop-split.cc (split_at_bb_p): Make int_range a Value_Range.
        * tree-ssa-strlen.cc (get_range): Same.
        * value-query.cc (range_query::get_tree_range):  Handle both
        integers and pointers.
        * vr-values.cc (simplify_using_ranges::fold_cond_with_ops): Make
        r0 and r1 Value_Range's.
---
 gcc/tree-ssa-loop-split.cc | 6 +++---
 gcc/tree-ssa-strlen.cc     | 2 +-
 gcc/value-query.cc         | 4 +---
 gcc/vr-values.cc           | 3 ++-
 4 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/gcc/tree-ssa-loop-split.cc b/gcc/tree-ssa-loop-split.cc
index a770ea371a2..a6be0cef7b0 100644
--- a/gcc/tree-ssa-loop-split.cc
+++ b/gcc/tree-ssa-loop-split.cc
@@ -144,18 +144,18 @@ split_at_bb_p (class loop *loop, basic_block bb, tree 
*border, affine_iv *iv,
           value range.  */
        else
          {
-           int_range<2> r;
+           Value_Range r (TREE_TYPE (op0));
            get_global_range_query ()->range_of_expr (r, op0, stmt);
            if (!r.varying_p () && !r.undefined_p ()
                && TREE_CODE (op1) == INTEGER_CST)
              {
                wide_int val = wi::to_wide (op1);
-               if (known_eq (val, r.lower_bound ()))
+               if (known_eq (val, wi::to_wide (r.lbound ())))
                  {
                    code = (code == EQ_EXPR) ? LE_EXPR : GT_EXPR;
                    break;
                  }
-               else if (known_eq (val, r.upper_bound ()))
+               else if (known_eq (val, wi::to_wide (r.ubound ())))
                  {
                    code = (code == EQ_EXPR) ? GE_EXPR : LT_EXPR;
                    break;
diff --git a/gcc/tree-ssa-strlen.cc b/gcc/tree-ssa-strlen.cc
index e09c9cc081f..61c3da22322 100644
--- a/gcc/tree-ssa-strlen.cc
+++ b/gcc/tree-ssa-strlen.cc
@@ -215,7 +215,7 @@ get_range (tree val, gimple *stmt, wide_int minmax[2],
       rvals = get_range_query (cfun);
     }
 
-  value_range vr;
+  Value_Range vr (TREE_TYPE (val));
   if (!rvals->range_of_expr (vr, val, stmt))
     return NULL_TREE;
 
diff --git a/gcc/value-query.cc b/gcc/value-query.cc
index eda71dc89d3..052b7511565 100644
--- a/gcc/value-query.cc
+++ b/gcc/value-query.cc
@@ -156,11 +156,9 @@ range_query::get_tree_range (vrange &r, tree expr, gimple 
*stmt)
     {
     case INTEGER_CST:
       {
-       irange &i = as_a <irange> (r);
        if (TREE_OVERFLOW_P (expr))
          expr = drop_tree_overflow (expr);
-       wide_int w = wi::to_wide (expr);
-       i.set (TREE_TYPE (expr), w, w);
+       r.set (expr, expr);
        return true;
       }
 
diff --git a/gcc/vr-values.cc b/gcc/vr-values.cc
index ff68d40c355..0572bf6c8c7 100644
--- a/gcc/vr-values.cc
+++ b/gcc/vr-values.cc
@@ -310,7 +310,8 @@ tree
 simplify_using_ranges::fold_cond_with_ops (enum tree_code code,
                                           tree op0, tree op1, gimple *s)
 {
-  int_range_max r0, r1;
+  Value_Range r0 (TREE_TYPE (op0));
+  Value_Range r1 (TREE_TYPE (op1));
   if (!query->range_of_expr (r0, op0, s)
       || !query->range_of_expr (r1, op1, s))
     return NULL_TREE;
-- 
2.44.0